Perfect fit and function on my m&p 15 sport ii - Midwest Industries Combat Rifle Top Mounted Deployable Iron Sight

My new M&P 15 came with a CTS-103 optic (dot) installed but no BUIS. Purchased and installed this set primarily due to brand reputation. Front sight went on the short rail atop the gas block. Rear sight went on at the far rear without having to relocate the optic. No clearance issues with the charging handle or anything else for that matter. Sighted in the iron sights first, then the dot. Ended up with perfect co-witness though I would have been happy to just be able to use the iron sights through the optic should the dot fail. Note that this was a fifty yard zero since I set my M&P up for home defense purposes. Thankfully the front sight tool is included; the rear is a simple twist knob for windage. Sturdy with positive lock in either position. You seemingly don't even notice them in the down position. As another reviewer noted, I also did break the slotted front sight attaching screw on a re-torque after a test session though I used a Fat Wrench and torqued to the recommended 35 in/lbs. Midwest explained some screws went out with an issue that might cause them to break on re-torques but the replacements on the way won't have any problems. So don't panic if you break one and I don't recommend you consider this a deal breaker on purchasing the sights. Just make a quick call and they'll ship out the replacement screws free of charge.